Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Fast growth and high photosynthetic rate in Merremia boisiana (Gagn.) Ooststr.

Abstract

Stem growth, photosynthesis and seedling emergence were studied in M. boisiana, a weed in suburban areas in Guangzhou, Guangdong, China. A shoot growth rate of 9.5 cm per day was recorded, but the highest shoot growth rate was 16.6 cm per day. The shoots lasted for up to 6 weeks, after which shoot emergence was not observed. The light saturation point and maximum net photosynthetic rate were higher in M. boisiana than in Calonyction aculonyction, Pueraria lobata and Mikania micrantha. Seedlings did not emerge from the fruiting period in December until August of the following year. These results indicated that M. boisiana is a fast-growing invasive species with a high photosynthetic rate.